package com.yangcangclub.pay.utils;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;



/**
 * 
 */
@SuppressWarnings("all")
public class XmlUtil {
	 
	/**
     * 解析xml,返回第一级元素键值对。如果第一级元素有子节点，则此节点的值是子节点的xml数据。
     * @param strxml
     * @return
     * @throws JDOMException
     * @throws IOException
     */
    public static Map doXMLParse(String strxml) throws Exception {
        strxml = strxml.replaceFirst("encoding=\".*\"", "encoding=\"UTF-8\"");

        if(null == strxml || "".equals(strxml)) {
            return null;
        }
        
        Map m = new HashMap();
        
        InputStream in = new ByteArrayInputStream(strxml.getBytes("UTF-8"));
        SAXBuilder builder = new SAXBuilder();
        Document doc = builder.build(in);
        Element root = doc.getRootElement();
        List list = root.getChildren();
        Iterator it = list.iterator();
        while(it.hasNext()) {
            Element e = (Element) it.next();
            String k = e.getName();
            String v = "";
            List children = e.getChildren();
            if(children.isEmpty()) {
                v = e.getTextNormalize();
            } else {
                v = getChildrenText(children);
            }
            
            m.put(k, v);
        }
        
        //关闭流
        in.close();
        
        return m;
    }
    
    /**
     * 获取子结点的xml
     * @param children
     * @return String
     */
    public static String getChildrenText(List children) {
        StringBuffer sb = new StringBuffer();
        if(!children.isEmpty()) {
            Iterator it = children.iterator();
            while(it.hasNext()) {
                Element e = (Element) it.next();
                String name = e.getName();
                String value = e.getTextNormalize();
                List list = e.getChildren();
                sb.append("<" + name + ">");
                if(!list.isEmpty()) {
                    sb.append(getChildrenText(list));
                }
                sb.append(value);
                sb.append("</" + name + ">");
            }
        }
        
        return sb.toString();
    }
    
    public static String setXML(String return_code, String return_msg) {
        return "<xml><return_code><![CDATA[" + return_code
                + "]]></return_code><return_msg><![CDATA[" + return_msg
                + "]]></return_msg></xml>";
	}
	public static void main(String[] agrs) throws Exception{
		System.out.println(doXMLParse("<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg><appid><![CDATA[wx9fc67c4b80d9dcf8]]></appid><mch_id><![CDATA[1244798802]]></mch_id><nonce_str><![CDATA[IjEvmIzMW3osYX4P]]></nonce_str><sign><![CDATA[5AAFB7329A5A06180EE88D98ED7D5376]]></sign><result_code><![CDATA[SUCCESS]]></result_code><prepay_id><![CDATA[wx20150602145346c94842ff240656001054]]></prepay_id><trade_type><![CDATA[JSAPI]]></trade_type></xml>"));
	}
}